| 高速铁路正交异性桥面板疲劳细节的应力分析 |
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| 引用本文： | 田洋,李运生,张彦玲,戴运良.高速铁路正交异性桥面板疲劳细节的应力分析[J].重庆交通大学学报(自然科学版),2011,30(4):729-733. |
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| 作者姓名： | 田洋 李运生 张彦玲 戴运良 |
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| 作者单位： | 石家庄铁道大学土木工程学院,河北石家庄,050043 |
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| 基金项目： | 铁道部科技研究开发计划资助项目(2009G003-C,2010G004-J) |
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| 摘 要： | 利用ANSYS软件对正交异性钢桥面板建立了有限元模型,取客运专线的“标准ZK活载”作为列车荷载,分析了面板-U肋-横梁三者交叉处、U肋-横梁连接处及横梁开孔圆弧处的局部应力.分析结果表明:桥面板的应力主要集中在U肋、横梁、桥面板三者相交的部位；沿U肋一周有明显的应力集中；横梁开孔处为整个桥面板中局部应力水平较高的位置,...
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| 关 键 词： | 正交异性板 高速铁路桥梁 疲劳 应力集中 |
Stress Analysis of Fatigue Details of Deck of Orthotropic Bridges in High-Speed Railway |
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| TIAN Yang,LI Yun-sheng,ZHANG Yah-ling,DAI Yun-liang.Stress Analysis of Fatigue Details of Deck of Orthotropic Bridges in High-Speed Railway[J].Journal of Chongqing Jiaotong University,2011,30(4):729-733. |
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| Authors: | TIAN Yang LI Yun-sheng ZHANG Yah-ling DAI Yun-liang |
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| Institution: | (School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,Hebei,China) |
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| Abstract: | Finite-element model was established by ANSYS for orthotropic steel bridge deck.Taking the standard ZK live load of PDL as the train load,the local stresses of the joint of rib and deck,the rib and crossbeam,and the cut-outs of the crossbeam were analyzed respectively.Analysis results showed that the stress of bridge deck mainly centered on intersecting part of the U-shaped rib,crossbeam,and bridge deck.Along the edge of the U-shaped rib there was obvious stress concentration.In the whole bridge deck,the local stress level of the cut-outs in crossbeam was almost the highest;the maximum stress at crossbeam cut-outs was mainly concentrated at the lower circular of the cut-outs,which was one of the positions prone to fatigue damage. |
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| Keywords: | orthotropic steel bridge deck high-speed railway bridge fatigue stress concentration |
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